EP1930038B1 - Apparatus for delivering a therapeutic substance through an injection port - Google Patents

Apparatus for delivering a therapeutic substance through an injection port Download PDF

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Publication number
EP1930038B1
EP1930038B1 EP07122514.8A EP07122514A EP1930038B1 EP 1930038 B1 EP1930038 B1 EP 1930038B1 EP 07122514 A EP07122514 A EP 07122514A EP 1930038 B1 EP1930038 B1 EP 1930038B1
Authority
EP
European Patent Office
Prior art keywords
syringe
adapter
end
injection port
body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP07122514.8A
Other languages
German (de)
French (fr)
Other versions
EP1930038A2 (en
EP1930038A3 (en
Inventor
Katherine Stanton
Michael R. Walters
Bradley S. Thomas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Becton Dickinson and Co
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Becton Dickinson and Co
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Filing date
Publication date
Priority to US87358006P priority Critical
Priority to US11/948,804 priority patent/US8002756B2/en
Application filed by Becton Dickinson and Co filed Critical Becton Dickinson and Co
Publication of EP1930038A2 publication Critical patent/EP1930038A2/en
Publication of EP1930038A3 publication Critical patent/EP1930038A3/en
Application granted granted Critical
Publication of EP1930038B1 publication Critical patent/EP1930038B1/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3202Devices for protection of the needle before use, e.g. caps
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61JCONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/05Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
    • A61J1/14Details, e.g. provisions for hanging or shape retaining means; Accessories therefor, e.g. inlet or outlet ports, filters or caps
    • A61J1/1406Septums, pierceable membranes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61JCONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/05Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
    • A61J1/14Details, e.g. provisions for hanging or shape retaining means; Accessories therefor, e.g. inlet or outlet ports, filters or caps
    • A61J1/20Arrangements for transferring or mixing fluids, e.g. from vial to syringe
    • A61J1/2003Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
    • A61J1/2048Connecting means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02Access sites
    • A61M39/0208Subcutaneous access sites for injecting or removing fluids
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02Access sites
    • A61M39/0247Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/001Apparatus specially adapted for cleaning or sterilising syringes or needles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • AHUMAN NECESSITIES
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    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3287Accessories for bringing the needle into the body; Automatic needle insertion
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61JCONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/05Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
    • A61J1/14Details, e.g. provisions for hanging or shape retaining means; Accessories therefor, e.g. inlet or outlet ports, filters or caps
    • A61J1/20Arrangements for transferring or mixing fluids, e.g. from vial to syringe
    • A61J1/2003Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
    • A61J1/2006Piercing means
    • A61J1/201Piercing means having one piercing end
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61JCONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/05Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
    • A61J1/14Details, e.g. provisions for hanging or shape retaining means; Accessories therefor, e.g. inlet or outlet ports, filters or caps
    • A61J1/20Arrangements for transferring or mixing fluids, e.g. from vial to syringe
    • A61J1/2003Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
    • A61J1/2048Connecting means
    • A61J1/2055Connecting means having gripping means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61JCONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/05Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
    • A61J1/14Details, e.g. provisions for hanging or shape retaining means; Accessories therefor, e.g. inlet or outlet ports, filters or caps
    • A61J1/20Arrangements for transferring or mixing fluids, e.g. from vial to syringe
    • A61J1/2003Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
    • A61J1/2048Connecting means
    • A61J1/2065Connecting means having aligning and guiding means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61JCONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/05Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
    • A61J1/14Details, e.g. provisions for hanging or shape retaining means; Accessories therefor, e.g. inlet or outlet ports, filters or caps
    • A61J1/20Arrangements for transferring or mixing fluids, e.g. from vial to syringe
    • A61J1/2096Combination of a vial and a syringe for transferring or mixing their contents
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • A61M2005/1587Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body suitable for being connected to an infusion line after insertion into a patient
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02Access sites
    • A61M39/0247Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
    • A61M2039/027Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body having a particular valve, seal or septum
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02Access sites
    • A61M39/0247Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
    • A61M2039/0276Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body for introducing or removing fluids into or out of the body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02Access sites
    • A61M39/0247Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
    • A61M2039/0285Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body with sterilisation means, e.g. antibacterial coatings, disinfecting pads, UV radiation LEDs or heating means in the port
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02Access sites
    • A61M39/0247Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
    • A61M2039/0288Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body protectors, caps or covers therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02Access sites
    • A61M39/0247Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
    • A61M2039/0294Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body having a specific shape matching the shape of a tool to be inserted therein, e.g. for easy introduction, for sealing purposes, guide
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/3129Syringe barrels
    • A61M5/3134Syringe barrels characterised by constructional features of the distal end, i.e. end closest to the tip of the needle cannula

Description

    Field of the Invention:
  • The present invention relates to the delivery of therapeutic substances through injection ports. More particularly, the present invention relates to a method and apparatus for using a syringe or pen injector to deliver a therapeutic substance through a subcutaneous injection port.
  • Background:
  • Therapeutic substances are often delivered by subcutaneous injection. One common device used to facilitate the delivery of such substances is a subcutaneous injection port. Subcutaneous injection ports typically include a housing with a soft tubular cannula and an apparatus for delivering a therapeutic substance to the cannula. To use such a port, a puncturing device such as a rigid needle is used to place the soft cannula in the subcutaneous tissue. The rigid needle is then withdrawn and the cannula and housing are left at the infusion site. A therapeutic substance may then be introduced through the cannula. This type of subcutaneous injection port may be left in a patient for several days. Examples of subcutaneous injection ports are disclosed in U.S. Patent Nos. 6,074,371 to Fischell , and. 6,017,328 to Fischell , which are hereby incorporated by reference in their entirety.
  • A subcutaneous injection port may be used to deliver a bolus of medicine with a syringe. A subcutaneous injection port suitable for use with a syringe is disclosed in U.S. Patent Publication No. 2004/0006316 A1 to Patton . EP 0 856 331 A2 discloses a medical adapter comprising a sharpened cannula for piercing the septum that closes a port of a bag. The rear end of the adapter is connectable with a needleless syringe. The needle is used for drawing fluid from the bag or inserting fluid into the bag. Another port of the bag may be connected to a fluid administration set.
  • WO 2006/099441 A2 describes a filling system for syringes with short needles. An adapter is provided having a first end to receive a syringe and a second end that can be connected to a vial for filling the syringe. The adapter comprises a septum that may be pierced by a cannula of the syringe. From the septum extends a hollow spike for piercing a septum of an injection port. The adapter may be used in connection with an intradermal injection device with a reservoir within which a drug substance may be held. The cannula of the syringe is not capable of piercing, through the adapter, the septum of an injection port.
  • US 6,213,978 B1 describes an intravenous catheter insertion apparatus. This apparatus comprises a catheter having a hub and a cannula adapted for insertion into a vein of a patient, a blunt cannula having a penetrating tube adapted for penetrating a slit defined in the septum of an injection device. There is no syringe having a cannula extending through an adapter for transferring of fluid from the syringe into a port.
  • US 4,675,006 A discloses a needle support for supporting a needle inserted into a body of a patient. The needle is connected to a catheter access port that is surgically implanted within a subcutaneous layer. The needle is inserted through the skin with the needle tip puncturing the skin at a puncture point and passes through a membrane of the catheter access port. The needle support is then used to maintain the needle tip within the reservoir of the catheter access port for the required amount of time.
  • WO 2006/097111 discloses an adapted having a first end that receives a syringe and a second end that mates with an injection port.
  • One problem that may occur when injecting therapeutic substances into a subcutaneous injection port with a syringe is misalignment between the cannula of the syringe and the injection port. If there is too much misalignment, the injection port may be damaged or improper dosages may be delivered. Furthermore, a user may completely miss the injection port, and accidentally stick themselves with the cannula.
  • Accordingly, there is a need for an improved apparatus for delivering therapeutic substances into a subcutaneous injection port.
  • SUMMARY OF THE INVENTION
  • It is an object of the present invention to provide an adapter for aligning a cannula of a syringe or pen injection with an injection port, such as a subcutaneous injection port.
  • Another object of the present invention is to provide an adapter for controlling the depth of penetration of a cannula of a syringe or pen injection needle into an injection port, such as a subcutaneous injection port.
  • Yet another object of the present invention is to provide an adapter that shields a cannula of a syringe or pen needle to prevent accidental needle punctures.
  • The adapter of the present invention is defined by claim 1.
  • In accordance with the present invention, an adapter for utilizing a syringe with a subcutaneous injection port, is provided. The adapter has a body having a first end and a second end. The first end of the body is adapted to receive an end of a syringe. The second end of the adapter is adapted to mate with the injection port. The adapter aligns the cannula of the syringe with the injection port and controls the depth of penetration of the cannula.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • The above and other objects, features, and advantages of certain exemplary embodiments of the present invention will be more apparent from the following description taken in conjunction with the accompanying drawings, in which:
    • Figures 1A - 1G are illustrations of an exemplary embodiment of an injection port and a method of using the same;
    • Figure 2 is a perspective view of a syringe and an injection port adapter according to an exemplary embodiment of the present invention;
    • Figure 3 is an enlarged perspective of the syringe and injection port adapter of Figure 2, with the tip of the syringe approaching a centering ring of the adapter;
    • Figure 4 is an enlarged perspective of the syringe and injection port adapter of Figure 2, with the tip of the syringe entering the centering ring of the adapter;
    • Figure 5 is a sectional view of the syringe and the injection port adapter of Figure 2, with the tip of the syringe in the centering ring of the adapter;
    • Figure 6 is a perspective view of a syringe suitable for use with the exemplary embodiments of the present invention;
    • Figure 7 is a sectional view of the second end of the syringe and injection port adapter of Figure 2 mated with an injection port;
    • Figure 8 is a perspective view of a syringe and an injection port adapter according to another exemplary embodiment of the present invention;
    • Figure 9 is a perspective view of the syringe and the injection port adapter of Figure 8, with the sterility cap of the syringe removed;
    • Figure 10 is a perspective view of the syringe and the injection port adapter of Figure 8, with the adapter in an open position on the end of the syringe;
    • Figure 11 is a perspective view of the syringe and the injection port adapter of Figure 8, with the adapter in a closed position on the end of the syringe;
    • Figure 12 is a front view of a syringe and an injection port adapter according to another exemplary embodiment of the present invention;
    • Figure 13 is a perspective view of the syringe and the injection port adapter of Figure 12, with the sterility cap removed;
    • Figure 14 is a perspective view of the syringe and the injection port adapter of Figure 12, approaching an injection port;
    • Figure 15 is a sectional view of the end of the syringe and the injection port adapter of Figure 12 in place on an injection port
    • Figure 16 is an injection port adapter for a syringe according to another exemplary embodiment of the present invention;
    • Figure 17 is a perspective view of the injection port adapter of Figure 16 and a syringe and an injection port;
    • Figure 18 is a perspective view of the injection port adapter of Figure 16 partially installed on a syringe;
    • Figure 19 is a perspective view of the injection port adapter of Figure 16 installed on a syringe;
    • Figure 20 is a perspective view of the injection port adapter of Figure 16 installed on a syringe and placed on an injection port;
    • Figure 21 is a sectional view of the end of the syringe and the injection port adapter of Figure 16 in place on an injection port;
    • Figure 22 is a front view of a syringe and an injection port adapter according to another exemplary embodiment of the present invention;
    • Figure 23 is a perspective view of the syringe and injection port adapter of Figure 22;
    • Figure 24 is a front view of the syringe and injection port adapter of Figure 22, with the injection port adapter placed on the end of the syringe;
    • Figure 25 is an enlarged schematic view of the syringe and injection port adapter of Figure 22;
    • Figure 26 is an enlarged perspective view of the interior of the injection port adapter of Figure 22;
    • Figure 27 is a front view of an injection port adapter for use with a pen style injection device according to another exemplary configuration which is not part of the present invention;
    • Figure 28 is an enlarged sectional view of a portion of the injection port adapter of Figure 27;
    • Figure 29 a front view of an injection port adapter of Figure 27, with the sterility cap removed;
    • Figure 30 is a schematic view of the injection port adapter of Figure 27, approaching an injection port;
    • Figure 31 is a section view of the injection port adapter of Figure 27;
    • Figure 32 is a perspective view of another configuration of an injection port adapter for use with a pen style injection device which is not part of the present invention;
    • Figure 33 is a perspective view of the injection port adapter of Figure 32, with the sterility cap removed;
    • Figure 34 is a sectional view of the injection port adapter of Figure 32;
    • Figure 35 is a front view of another configuration of an injection port adapter for use with a pen style injection device, with the injection port adapter in a flattened state which is not part of the present invention;
    • Figure 36 is a top perspective view of the injection port adapter of Figure 35, in a folded state, assembled with a pen style injection device;
    • Figure 37 is a bottom perspective view of the injection port adapter of Figure 35, in a folded state, assembled with a pen style injection device;
    • Figure 38 is a front view of a vial adapter for using an syringe and an injection port adapter with a vial which is not part of the present invention;
    • Figure 39 is a sectional view of the vial adapter of Figure 38;
    • Figure 40 is a front view of the vial adapter of Figure 38 in the process of being placed on a vial;
    • Figure 41 is a front view of the vial adapter of Figure 38 in place on a vial; and
    • Figure 42 is a perspective view of the vial adapter of Figure 38 in the process of being used to load medicine in the syringe from the vial.
  • Throughout the drawings, the same reference numerals will be understood to refer to the same elements, features, and structures.
  • DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS
  • The matters defined in the description such as a detailed construction and elements are provided to assist in a comprehensive understanding of the embodiments of the invention and are merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes to and modifications of the embodiments described herein can be made without departing from the scope of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
  • Referring to Figures 1A - 1G, a subcutaneous injection port 10 according to an exemplary embodiment of the present invention includes a body portion 12, a soft cannula (or catheter) 14, and a septum 16 that forms a hollow cavity connected to the cannula. To use the injection port, an adhesive material is placed on the lower surface of the body portion 12 of the injection port 10. The adhesive material may be adhesive tape, and the tape may be covered with a liner prior to use to prevent the tape from adhering to an unwanted surface. After the skin 11 has been cleaned and prepared (FIG. 1A), the injection port 10 is placed against a patient's skin at a desired location, and the cannula 14 is inserted into the subcutaneous tissue (FIGS. ID, IE and 1F). The cannula 14 is preferably inserted by an automatic insertion device 18 (FIGS. IB and 1C), such as those available from Unomedical a/s of Birkeroed, Denmark. Suitable insertion device are disclosed in U.S. Patent Nos. 6,830,562 to Mogensen et al. and 7,115,112 to Mogensen et al. , both of which are hereby incorporated by reference in their entirety.
  • With the injection port in place, a therapeutic substance, such as insulin, may be injected through the injection port by utilizing a conventional syringe 20 (FIG. 1G), a conventional pen needle injection device (not illustrated), or the like. Suitable syringes are available from the assignee of the present application, Becton, Dickinson and Company of Franklin Lakes, New Jersey. To inject the therapeutic substance, the cannula of the syringe or pen needle is placed through the septum 16 of the injection port 10, and the therapeutic substance is discharged.
  • To facilitate the use of a conventional syringe with the injection port and to prevent misalignment of the cannula with the injection port, adapters that interface the syringe with the injection port may be provided. Exemplary embodiments of suitable adapters will now be described, and additional details of the injection port will be discussed as necessary in connection with the detailed description of the adapters.
  • Figures 2-5 illustrate an injection port adapter 100 according to an exemplary embodiment of the present invention. The injection port adapter 100 provides an interface between a conventional, commercially available syringe and an injection port. The injection port adapter 100 has a hollow body 102 with a first end 104 and a second end 106. The first end 104 of the hollow body 102 receives the end of the syringe 20 and guides the syringe 20 into a desired position within the hollow body 102. The second end 106 of the hollow body 102 has a geometric configuration that corresponds to a corresponding mating portion of the injection port. In this manner, as will be discussed in further detail below, the cannula 22 of the syringe 20 is guided to and held at the appropriate location with respect to the injection port.
  • In the illustrated embodiment, the first end 104 of the hollow body 102 is an annular, ring-shaped member 108. The inner diameter of the annular ring 108 is large enough to allow the end of the syringe to pass through and enter into the adapter.
  • The annular ring 108 is connected to the second end 106 of the adapter 100 by a plurality of ribs 110. In the illustrated embodiment, three ribs 110 are used to connect the annular ring to the second end 106 of the adapter 100. Any number of ribs may be used, however. A solid connection may also be used to form the connection. The use of ribs, however, minimizes the surface area of the adapter 100, and therefore minimizes the potential of the cannula 22 of the syringe 20 coming into contact with the adapter 100. Contact between the needle and a non-sterile adapter has the potential to introduce foreign bodies into the body and contaminate the needle.
  • A centering ring 112 is disposed in the hollow body 102, and is supported by the plurality of ribs 110. The centering ring 112 receives the end of the syringe, and holds the end of the syringe in a stable position. Preferably, the inner diameter of the centering ring forms a friction fit with the end of the syringe to hold the adapter in place on the end of the syringe. Moreover, a syringe typically has a hub 24 with an annular flange 26 near the end of the syringe so that a sterility cap 28 may be placed on the end of the syringe (see Figure 6). As seen in Figure 5, when the adapter 100 is placed on the syringe 20, the annular flange 26 on the syringe 20 is pressed against the centering ring 112. Consequently, the centering ring 112 both aligns the syringe 112 with the adapter and controls the depth of the insertion of the cannula 22.
  • The adapter 100 may be formed of any suitable material, such as polypropylene. The adapter 100 may be formed by any conventional manufacturing method, including injection molding and the like.
  • To use the adapter 100 to make an injection of a therapeutic substance through an injection port, a user removes the sterility cap 28 from a syringe 20. The syringe 20 may be pre-loaded with a therapeutic substance. More typically, however, a user will load the syringe 20 with a dose of a therapeutic substance contained in a separate container, such as a vial, in a conventional manner. The user may then move the end of the loaded syringe 20 through the annular ring 108 of the adapter 100 and into the centering ring 112 until the annular flange 26 of the syringe 20 abuts the centering ring 112. The syringe 20 and adapter are now ready for use. At this point, it should be noted that the cannula is recessed within the adapter so that accidental punctures are minimized.
  • The syringe 20 and the attached adapter 100 are then brought to the injection port 10. As seen in Figure 7, the injection port 10 has a mating portion 30 for engaging the second end 106 of the injection port adapter 100. In the illustrated exemplary embodiment, the mating portion 30 is an annular recess. The second end 106 of the injection port adapter 100 is placed into the mating portion 30 and engages the mating portion 30 so that the injection port adapter 100 is held in a stable manner. Although the second end 106 of the adapter 100 and the corresponding mating portion 30 are annular in the illustrated exemplary embodiment, other shapes may be used if desired.
  • When the injection port adapter 100 is placed into the mating portion on the injection port 10, the cannula 22 pierces the septum 16 of the injection port 10, and the engagement of the mating portion 30 and the second end 106 of the adapter 100 assures that the cannula 22 is placed at the proper depth within the injection port. After the syringe has been placed on the injection port, the syringe may be used to dispense the therapeutic substance contained in the syringe into the injection port. The therapeutic substance then travels through the soft cannula 14 of the injection port 10 and into the subcutaneous tissue.
  • At this point, the syringe 10 and adapter 100 assembly may be removed from the injection port. Typically, the syringe 10 will be disposed of for safety and health reasons. The adapter 100 may also be disposed of. The adapter 100, however, does not directly contact any body fluids, and may be reused if desired.
  • Figures 8-11 show a syringe 20 and an injection port adapter 200 in accordance with another exemplary embodiment of the present invention. The injection port adapter 200 of this exemplary embodiment includes a hollow body 202 with a first end 206 and a second end 204. The hollow body 202 has a first body portion 208 and a second body portion 210. The first body portion has a first attachment collar portion 212 and a first foldable portion 214 that is pivotable with respect to the first attachment collar portion 212. The foldable portions may be pivotably attached by a living hinge or other conventional pivotable connection. The second body portion 210 has a second attachment collar portion 216 and a second foldable portion 218 that is pivotable with respect to the second attachment collar portion 216.
  • The injection port adapter 200 may be formed of any suitable material, such as polypropylene. The adapter may be formed by any conventional manufacturing method, including injection molding and the like.
  • To utilize the injection port adapter 200 of this exemplary embodiment of the invention, the first and second body portions 208, 210 are assembled together so that the first and second attachment collar portions 212, 216 form an attachment collar 220 surrounding the barrel 32 of the syringe 20. Preferably, the pieces have conventional snap fasteners so that they may be snapped together. Other suitable fastening methods known to those skilled in the art can also be used. This assembly may be done by the end user of the device. During the assembly process so far, the sterility cap 28 of the syringe 20 does not need to be removed, thereby minimizing potential contamination of the cannula 22.
  • Once the first and second body portions 208, 210 have been assembled together, the sterility cap 28 may be removed from the syringe 20, as shown in Figure 9. Next, the first and second body portions 208, 210 may be slid towards the end of the syringe. The first and second body portions 208, 210 have recesses 222 for accommodating the annular flange 26 on the hub 24 of the syringe 20. At this time, one of the foldable portions 214 or 216 is placed at the proper location on the syringe 20 so that the annular flange 26 is disposed in the corresponding recess 222 of the foldable portion. The other foldable portion 214 or 216 is then folded together to close the portions around the syringe 20 and form the adapter. A fastener, such as a snap style fastener using pins 226 that extend through corresponding apertures 228, may be provided to hold the foldable portions closed with respect to one another.
  • The syringe 20 and the injection port adapter 200 may now be used to inject a therapeutic substance through an injection port. It should be noted that once the adapter has been placed on the syringe, it may be difficult or even impossible to load the syringe 20 using a vial because the cannula 22 is shrouded by the injection port adapter 200. Therefore, the syringe may be loaded prior to sliding the first and second body portions 208, 210 towards the end of the syringe, as mentioned above. Alternatively, a vial adapter (see Figures 38-42) may be provided to facilitate loading the syringe from a vial. Further details regarding such an adapter will be discussed below.
  • Figures 12-15 show a syringe 20 and an injection port adapter 300 in accordance with another exemplary embodiment of the present invention. The injection port adapter 300 of this exemplary embodiment includes a hollow body 302 with a first end 306 and a second end 304. The first end 306 of the hollow body has an opening 308 for receiving the end of the syringe 20. As seen in Figure 15, the syringe 20 may have a hub portion 24 as previously discussed, and the first end 306 of the hollow body 302 may mate with the hub portion 24 of the syringe 20. The second end 304 of the hollow body 302 has a geometric configuration that engages the mating portion of the injection port.
  • A cap 310 is provided to cover the second end 304 of the adapter 300. The cap 310 preferably seals tightly with the second end 306 of the injection port adapter 300 so that the sterility of the cannula of the syringe 20 is maintained. Thus, the injection port adapter 300 and the associated cap 310 may be used to replace a conventional sterility cap. That is, the adapter 300 may serve as both a sterility cap and an integrated adapter.
  • The adapter may be formed of any suitable material, such as polypropylene. The adapter may be formed by any conventional manufacturing method, including injection molding and the like.
  • Typically, the injection port adapter 300 of this exemplary embodiment of the invention is delivered to an end user already installed on the syringe 20. To use the adapter 300, a user removes the sterility cap 310 to expose the end of the adapter 300. If the syringe 20 is not pre-loaded, the user then loads the syringe 20 with a dose of a therapeutic substance. This may be done using a vial adapter, which is discussed below. The loaded syringe 20 and the attached adapter 300 are then brought to the injection port, the second end 304 of the adapter 300 is brought into engagement with the mating portion of the injection port 10, and the injection is made. After the injection, the syringe and the associated adapter will typically be disposed of for health and safety reasons.
  • Figures 16-21 show a syringe and an injection port adapter 400 in accordance with another exemplary embodiment of the present invention. The injection port adapter 400 of this exemplary embodiment includes a hollow body 402 with a first end 406 and a second end 404. The hollow body 402 has a first body portion 408 and a second body portion 410. The first and second body portions are pivotable with respect to one another, preferably by a living hinge.
  • The first body portion 408 has a first attachment collar portion 412 and a first foldable portion 414 that is pivotable with respect to the first attachment collar portion 412. Preferably, the first and second body portions are connected by a living hinge. The second body portion 410 has a second attachment collar portion 416 and a second foldable portion 418 that is pivotable with respect to the second attachment collar portion 416.
  • The adapter 400 of this exemplary embodiment of the invention is preferably formed in a flattened state, as shown in Figure 16, by injection molding or the like. To install the adapter 400 on a syringe 20, the flattened adapter is placed adjacent to the syringe. The first and second attachment collar portions 412, 416 have recesses 422 for accommodating the annular flange 26 on the hub 24 of the syringe 20. These recesses 422 are aligned with the annular flange 26 on the hub 24 of the syringe 20, and the first and second body portions 408, 410 are folded together so that the first and second attachment collar portions 412, 416 form an attachment collar 420 around the hub 24 of the syringe 20, as shown in Figure 21. Preferably, the pieces have conventional snap fasteners so that they may be snapped together. Other suitable fastening methods known to those skilled in the art can also be used. During this assembly process, the area where the adapter 400 contacts the syringe 20 extends back and away from the cannula, thereby minimizing the potential of contamination. At this time, the cannula 22 of the syringe 20 is exposed, and the syringe 20 may be loaded with a therapeutic substance from a vial.
  • After the syringe is loaded, the first and second foldable portions 414, 418 are folded back to form the hollow body 402 of the adapter 400, as shown in Figure 19. Preferably, the pieces have conventional snap fasteners so that they may be snapped together. Other suitable fastening methods known to those skilled in the art can also be used. With this configuration, the cannula 22 is shrouded and recessed for safety. Preferably, the injection port adapter 400 is assembled to the syringe 20 by the end user of the device.
  • The syringe 20 and the injection port adapter 400 may now be used to inject a therapeutic substance through an injection port. The process is substantially the same as discussed above, and thus will not be repeated.
  • Figures 22-26 show a syringe 20 and an injection port adapter 500 in accordance with another exemplary embodiment of the present invention. The injection port adapter 500 of this exemplary embodiment includes a hollow body 502 with a first end 504 and a second end 506. The hollow body 502 is a unitary, one-piece adapter. A slit 508 is formed along one side of the hollow body. The slit 508 allows the hollow body 502 to flex so that a syringe 20 may be passed through the slit 508 so that the body 502 accommodates the syringe 20.
  • To use the adapter 500, a user places the adapter on a syringe 20 by pressing the syringe 20 through the slit 508 in the body of the adapter. Preferably, the adapter 500 is loaded on the middle portion of the syringe (that is, the position shown in Figures 22 and 23). After the adapter is in place, the user may remove the sterility cap from the syringe 20 and load the syringe with a therapeutic substance. Since the adapter is located away from the end of the syringe, it does not interfere with the dosing of the syringe. Once the syringe has been loaded, the user slides the adapter 500 down the barrel of the syringe 20 until the hub 24 engages the body of the adapter, as shown in FIG. 25. The adapter is now in the proper position for use. To assure that the adapter 500 does not slide back up the barrel of the syringe, the adapter may include locking features, such as a locking tab 510, to engage the hub 24 of the syringe 20.
  • Once the therapeutic substance has been removed, the adapter 500 may be removed from the syringe by squeezing the tip of the adapter, which causes enough deformation to disengage the locking features of the adapter 500 from the syringe. To facilitate removal, gripping features, such as wings, may be provided on the adapter. Once removed, the adapter 500 may be reused or it may be discarded.
  • In the above descriptions, the exemplary embodiments of the injection port adapters have been described in connection with a conventional, syringe style injection device. The injection port adapters are not limited to syringe style injection devices, however, and may be used with alternative injection devices, such as pen style injection systems. One such pen style injection system is described in U.S. Patent No. 5,941,857 , which is hereby incorporated by reference in its entirety.
  • Figures 27-31 show a pen needle with an integrated injection port adapter 600 which is suitable for use with a pen needle delivery system according to an exemplary embodiment of the present invention. The adapter 600 has an outer shield 602, a sterility cap 608, a pen needle assembly 610 (which may be, for example, a 12.5 mm assembly), and a foil or paper sterility barrier 612. The outer shield 602 has a first end 604 and a second end 606. The sterility cap 608 has, for example, three annular rings 614 similar to those used in a syringe sterility cap and is placed over the second end of the outer shield to form a sterile barrier. The foil or paper sterility barrier 612 is placed over the opening in the first end 604 of the outer shield 602 to maintain a sterile environment within the pen needle. The opening of the first end 604 of the outer shield 602 is configured to mate with a pen delivery system, such as with threads.
  • To use the adapter 600, the foil or paper sterility barrier 612 is peeled off, and the outer shield 602 is attached to a delivery pen, such as by screwing it onto the delivery pen. The sterility cap 608 is removed from the second end 606 of the outer shield 602 to expose the shielded needle assembly 610. The second end 606 of the outer shield 602 has a geometry that mates with the mating portion 30 of the injection port 10, as discussed above. Thus, the adapter 600 assures that the needle is properly aligned with the septum of the injection port 10 and that the needle is not inserted too far into the injection port. Once the therapeutic substance has been delivered through the injection port 10, the adapter may be removed from the delivery pen and discarded. Before removal, the sterility cap 608 may be placed back onto the adapter 600. Because the needle is covered, however, it is safe to dispose the pen needle and shield assembly without replacing the sterility cap 608.
  • Figures 32-34 show a pen needle with an integrated injection port adapter 700 which is suitable for use with a pen needle delivery system according to another exemplary configuration. With the exception of the sterility cap 708, this configuration is substantially identical to the just described configuration. In this configuration, the sterility cap 708 has a pair of outer wings 710 which may be used as an aid to remove the cap. Further, in this configuration, the sterility cap 708 is preferably welded to the adapter 700 using an energy director ring 712 and ultrasonic or spin welding. This creates an air tight seal that is broken by a user when the cap 708 is twisted off.
  • Figures 35-37 show an adapter 800 for using a conventional pen needle assembly with an injection port 10 according to another exemplary configuration. The adapter 800 has first, second, and third legs 802, 804, and 806 that are connected together to form a triangular shaped body 809. The first and second legs of the adapter have first and second recesses 808, 810, respectively, that accommodate a pen needle assembly. The first and second legs of the hollow body also have extending struts 812 that are arranged in a geometric pattern that corresponds to the shape of the mating portion of an injection port when the adapter 800 is folded. In this manner, the struts 812 engage the mating portion 30 of the injection port 10 to accurately position the needle of the pen needle assembly.
  • Preferably, the adapter is formed in a flat pattern to minimize packaging space. To do so, the first and second legs may be connected by a living hinge 814, and the second and third legs may be connected by another living hinge 814. The ends of the first and third legs have a slot 816 and complementary tab 818. With this configuration, a user may fold the three legs into a triangular shape and fasten the legs together. The adapter may be formed of any suitable material, such as polypropylene. The adapter may be formed by any conventional manufacturing method, including injection molding and the like.
  • As mentioned above, it may be difficult or even impossible to load a syringe from a vial once the adapter is placed onto the syringe. To overcome this difficulty, an adapter 900 for a vial may be provided. An exemplary configuration of such an adapter 900 is shown in Figures 38-42. The adapter 900 has a disc portion 902 with a bottom surface 904 and a top surface 906. A plurality of flexible fingers 908 extend downward from the bottom surface. The flexible fingers 908 have a retention flange 910 formed on an inner surface. The flexible fingers 908 are positioned so that they accommodate the neck of a vial, and the flexibility of the flexible fingers 908 allow the retention flange 910 to pass over the crimp ring on the neck of a vial and hold the adapter in place. Furthermore, the flexibility of the flexible fingers 908 allows the vial adapter 900 to be used with a range of vial sizes.
  • A cylinder 912 extends from the top surface 906 of the disc 902. The cylinder 912 has an outside diameter that corresponds to the inner diameter of the above-described insulin port adapters. A septum 914 covers the opening at the top of the cylinder 912 to form a hollow cavity 916 within the cylinder 912. Preferably, the septum 914 is flush with the top edge of the cylinder to facilitate wiping the septum with an alcohol swab between uses. A cannula 918 extends through the disc 907 into the hollow cavity 916.
  • The first step in using the vial adapter is to place the vial adapter 900 on the vial. To do so, the flexible fingers 908 are placed over the neck and crimp ring of a vial of a therapeutic substance, and the vial adapter 900 is pressed down. The flexible fingers 908 flex outward to pass over the crimp ring. As the vial adapter 900 is pressed further down, the retention flange 910 on the inner surface of the flexible fingers 908 passes the crimp ring, and the flexible fingers 908 return to their original position so that the vial adapter is held onto the vial. Meanwhile, the cannula 918 of the vial adapter 900 is pressed through a septum on the top of the vial, thereby forming a passage between the interior of the vial and the hollow cavity 916 on the vial adapter 900.
  • Once the vial adapter 900 has been placed on the vial, as shown in FIG. 41, a syringe 20 with an injection port adapter may be placed over the top cylinder 912 of the vial adapter, as shown in FIG. 42. The cannula of the syringe 20 punctures the septum 914 at the top of the vial adapter 900 and enters the cavity 916 in the vial adapter. The vial, vial adapter, and syringe are all inverted, and the syringe is operated to load the therapeutic substance into the syringe. Once the syringe is loaded, the syringe may be removed and used with an injection port in the manner described above. The vial adapter may be removed from the vial, or may be left in place for future use.
  • The vial adapter 900 may be formed of any suitable material, such as polypropylene. The adapter may be formed by any conventional manufacturing method, including injection molding and the like.
  • It should be understood that although the exemplary configuration of the vial adapter has a cylinder for mating with an injection port adapter, the vial adapter is not limited to a cylindrical shape. Any geometric pattern that mates with the injection port adapter of a syringe is possible.
  • While the invention has been shown and described with reference to certain embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims and their equivalents. For example, although a subcutaneous injection port has been described herein, the principles of the present invention are applicable to other types of injection ports, such as intradermal injection ports.

Claims (12)

  1. A combination of a syringe, an injection port for subcutaneous injections and an adapter, wherein the syringe (20) comprises a cannula (22) for piercing a septum (16) of the injection port (10)
    wherein the adapter (100) comprises:
    a body (102) having a first end (104) and a second end (106), the first end (104) of the body including an annular, ring-shaped member (108) and adapted to receive an end of a syringe (20) and the second end (106) having a geometric configuration that corresponds to a corresponding mating portion (30) of the injection port, wherein the syringe (20) includes a hub (24) with an annular flange (26), said first end (104) receiving the end of the syringe (20) and guiding the syringe into a desired position within the body,
    characterized in that
    the adapter further comprises:
    a plurality of ribs (110) for connecting the annular, ring-shaped member (108) of the first end (104) to the second end (106) and
    a centering ring (112) disposed in the body (102) and supported by the plurality of ribs (110), the centering ring (112) both aligning the syringe (20) with the adapter (100) and controlling the depth of the insertion of the cannula (22) when the annular flange (26) on the syringe (20) is pressed against the centering ring (112).
  2. The combination according to claim 1, wherein said centering ring (112) receives an end of the syringe (20) to align the end of the syringe (20) with the injection port (10).
  3. The combination according to claim 1, wherein the body comprises:
    a first body portion (208,408); and
    a second body portion (210,410) that mates with the first body portion.
  4. The combination according to claim 3, wherein the first and second body portions are foldable between an open position and a closed position.
  5. The combination according to claim 3, further comprising a hinge connecting the first and second body portions.
  6. The combination according to claim 3, wherein
    the first body portion (208,408) comprises a first attachment collar portion (212,412) pivotably connected to a first foldable portion, and
    the second body portion (210,410) comprises a second attachment collar portion (216,416) pivotably connected to a second foldable portion, the first and second attachment collar portions mating with one another to form an attachment collar (220,420).
  7. The combination according to claim 1, further comprising a cap (310) for covering the second end (106) of the body.
  8. The combination according to claim 1, wherein the hollow body has a slit (508) for receiving the syringe (20).
  9. The combination according to claim 8, further comprising a locking tab (510) formed on the body to engage the hub (24) of the syringe (20).
  10. The combination according to claim 2, wherein said plurality of ribs (110) extends between the annular ring and the centering ring (112).
  11. The combination according to claim 3, wherein the first and second body portions (408,410) each have a recess (422) adapted to receive an end of the syringe to align the syringe with the injection port.
  12. The combination according to claim 3, wherein the mated first and second body portions cover the end of the syringe (20) when disposed thereon.
EP07122514.8A 2006-12-08 2007-12-06 Apparatus for delivering a therapeutic substance through an injection port Active EP1930038B1 (en)

Priority Applications (2)

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US87358006P true 2006-12-08 2006-12-08
US11/948,804 US8002756B2 (en) 2006-12-08 2007-11-30 Method and apparatus for delivering a therapeutic substance through an injection port

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EP1930038A3 EP1930038A3 (en) 2008-07-23
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US20110022006A1 (en) 2011-01-27
US20160015906A1 (en) 2016-01-21
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US8002756B2 (en) 2011-08-23
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US9180257B2 (en) 2015-11-10
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